Description:
The Bently Nevada 3500-50 133388-02 is a high-performance 4-channel speed and keyphasor monitoring module,a core component of Bently Nevada’s 3500 Machinery Protection and Monitoring System.It specializes in real-time measurement of rotating equipment speed(up to 60,000 RPM)and keyphasor signals—critical for synchronizing vibration data(from 3500-70M 176449-09 modules)and ensuring safe operation of turbines,compressors,and large motors.With SIL 2 safety certification,EMI-resistant design,and seamless integration with 149369-01K extension cables for sensor connectivity,the 3500-50 133388-02 acts as a“speed guardian”in power plants,refineries,and manufacturing facilities,preventing overspeed-related failures and enabling predictive maintenance.
Application Scenarios:
A 800MW nuclear power plant in France faced challenges with unreliable turbine speed monitoring—its legacy speed modules often produced false overspeed alarms due to EMI from reactor cooling pumps,forcing unnecessary turbine trips that cost
500,000perincident.Additionally,theplantstruggledtocorrelatespeeddatawithvibrationreadingsfromits∗∗3500−70M∗∗modules,limitingpredictivemaintenancecapabilities.AfterdeployingBentlyNevada∗∗3500−50133388−02∗∗modules,theplantresolvedtheseissues:themodule’sEMI−shieldeddesigneliminatedfalsealarms(reducingtripsby100
2M in avoided downtime and extended turbine mean time between failures(MTBF)by 50%.
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Main Parameters
Value/Description
Product Model
Bently Nevada 3500-50 133388-02
Manufacturer
Bently Nevada(a Baker Hughes business)
Product Category
4-Channel Speed&Keyphasor Monitoring Module(3500 System)
Speed Measurement Range
0–60,000 RPM(single-speed);0–30,000 RPM(dual-speed)–covers all industrial rotating equipment
Speed Accuracy
±0.01%of measured speed–ensures precise overspeed protection
Keyphasor Functionality
Captures shaft phase angle(0–360°)for vibration data synchronization with 3500-70M
Input Channels
4 independent channels–2 for speed probes,2 for keyphasor probes
Safety Certification
SIL 2(IEC 61508),IEC 61010-1–meets critical safety standards
Communication Interface
RS485(Modbus RTU),4-20mA analog outputs–integrates with DCS/SCADA systems
Power Supply
24V DC(±10%tolerance);Typical功耗:10W–compatible with industrial power
Physical Dimensions
160mm(H)×100mm(W)×80mm(D)–fits 3500 system racks
Environmental Rating
Operating temp:-20°C to+65°C;Storage temp:-40°C to+85°C;Humidity:5–95%(non-condensing);IP20
Protection Features
Overvoltage protection(±30V DC),ESD protection(±15kV contact)–safeguards sensors
Weight
0.55kg–sturdy for rack-mounted installation
Mounting Type
3500 system rack-mounted(compatible with 3500/20,3500/22 racks)
Compliance
CE,UL 508,ATEX Zone 2(hazardous areas)–global industrial compatibility
Compatibility
Bently Nevada 3500 System,3500-70M 176449-09,149369-01K cables,speed probes(330106),ABB ADPI-01
Key Features
Overspeed trip relays,auto-calibration,fault logging,keyphasor synchronization
Technical Principles and Innovative Values:
Innovation Point 1:Ultra-Precise Speed Measurement.Unlike standard speed modules(±0.1%accuracy),the 3500-50 133388-02 delivers±0.01%speed accuracy—critical for nuclear power plant turbines,where a 0.1%overspeed can exceed safety limits.Its advanced signal processing filters out electrical noise from nearby equipment,ensuring reliable readings even when connected via 5m 149369-01K cables,avoiding overspeed false trips that cost plants hundreds of thousands in downtime.
Innovation Point 2:Integrated Keyphasor Synchronization.The module’s keyphasor functionality captures shaft phase angles,enabling direct correlation with vibration data from 3500-70M 176449-09 modules.This integration eliminates the need for external synchronization tools,allowing engineers to map vibration patterns to specific shaft positions(e.g.,detecting imbalance at 180°phase)and identify faults 2–3 times faster than with separate speed/vibration systems.
Innovation Point 3:Hazardous Area&EMI Resilience.The 3500-50 133388-02’s ATEX Zone 2 certification and EMI-shielded circuitry make it ideal for refineries and chemical plants,where explosive atmospheres and high electrical interference are common.Unlike generic modules that require expensive explosion-proof enclosures,the 3500-50 operates safely in Zone 2,while its EMI resistance(tested to EN 61000-6-2)ensures accurate speed readings even near large motors—reducing data errors by 90%compared to non-shielded alternatives.
Application Cases and Industry Value:
Case 1:Petrochemical Refinery in Texas,USA
A refinery used 3500-50 133388-02 modules to monitor 6 crude oil compressors(critical for refining operations)in Zone 2 hazardous areas.The module’s ATEX certification eliminated the need for
15,000explosion−proofenclosuresperunit,whileitskeyphasorfeaturesynchronizedspeeddatawith∗∗3500−70M∗∗vibrationreadings.Whenonecompressor’sspeedfluctuatedby0.5
300,000 compressor failure and 2-day production outage.Using 149369-01K cables to connect speed probes to the 3500-50 ensured signal integrity,even in the refinery’s high-EMI environment.
Case 2:Steel Mill in Germany
A steel mill struggled with unreliable speed monitoring of its 20MW rolling mill motors,leading to product defects from inconsistent roll speed.The mill deployed 3500-50 133388-02 modules,which delivered±0.01%speed accuracy and integrated with the mill’s ABB DCS via ADPI-01 modules.The 3500-50’s overspeed trip relays also prevented motor damage during power surges.Over 1 year,the mill reduced product defects by 25%(from inconsistent speed)and avoided 3 motor failures(saving$400,000 each).The module’s compatibility with 149369-01K cables simplified wiring between motor-mounted probes and control room racks,cutting installation time by 40%.
Related Product Combination Solutions:
Bently Nevada 3500-70M 176449-09:The 3500-50 133388-02 synchronizes keyphasor/speed data with this vibration module,enabling integrated asset health monitoring and faster fault diagnosis.
Bently Nevada 149369-01K Cable:Connects speed/keyphasor probes to the 3500-50,ensuring low-signal-loss,EMI-resistant data transfer—critical for maintaining the module’s±0.01%speed accuracy.
Bently Nevada 330106 Speed Probe:Paired with the 3500-50 to measure shaft speed,optimized for 0–60,000 RPM range and compatible with 149369-01K cables.
Bently Nevada 3500/20 Rack:The 3500-50 mounts in this rack,which powers and synchronizes it with other 3500 modules(e.g.,3500-70M)for comprehensive asset protection.
ABB ADPI-01 Analog Input Module:Converts the 3500-50’s 4-20mA speed signals to digital data for ABB AC 800M DCS integration,enabling centralized monitoring of speed and process data.
Bently Nevada AssetVision Software:Analyzes speed/keyphasor data from the 3500-50 and vibration data from 3500-70M,generating trend reports and predicting maintenance needs.
ABB Enclosure System(IP65):Houses the 3500-50 and ADPI-01 in outdoor/harsh environments(e.g.,steel mill yards),protecting against dust,moisture,and temperature extremes.
Bently Nevada 3500/92 Communication Gateway:Extends the 3500-50’s connectivity to Ethernet/IP,enabling integration with SCADA systems beyond the DCS for remote speed monitoring.
Installation,Maintenance,and Full-Cycle Support:
Installing the 3500-50 133388-02 involves inserting it into a Bently Nevada 3500 system rack(e.g.,3500/20)and securing it with the built-in latch.Use 149369-01K cables to connect speed/keyphasor probes to the module’s labeled channels,ensuring proper grounding of the cable shield(to the rack’s ground bar)for maximum EMI protection.Configure speed ranges,overspeed trip thresholds(e.g.,110%of rated speed),and keyphasor settings via Bently Nevada’s 3500 Configuration Software—this takes 1.5–2 hours for a 4-channel setup.Test the module by simulating speed changes(using a signal generator)and verifying trip relay activation at threshold levels.
Routine maintenance includes monthly checks:verify LED indicators(green for normal,amber for warning,red for fault)and test overspeed trip relays via software.Every 6 months,calibrate the module using a precision speed simulator to maintain±0.01%accuracy—though the 3500-50’s auto-calibration feature reduces manual calibration frequency by 50%.In case of faults,the module logs errors(e.g.,probe open circuit)and alerts operators via the DCS,enabling fast troubleshooting without specialized tools.Inspect 149369-01K cables during maintenance to ensure shielding integrity,as damaged cables can degrade speed data accuracy.
We offer a 3-year warranty on the 3500-50 133388-02 module,covering accuracy deviations,relay failures,and component defects.Our technical team provides remote support for configuration and fault diagnosis,with response times under 2 hours.For large-scale deployments(e.g.,power plants with 10+turbines),we offer on-site training to help teams interpret speed/keyphasor data and optimize overspeed protection settings.We also stock the module and compatible probes/cables globally for fast delivery—critical for minimizing downtime in mission-critical rotating equipment applications.
Whether you’re protecting nuclear plant turbines,refinery compressors,or steel mill motors,the Bently Nevada 3500-50 133388-02 delivers the precision,synchronization,and resilience needed to ensure safe,reliable operation.Contact us for a customized speed monitoring solution tailored to your critical rotating assets.
